Lyapunov spectrum of chaotic maps with a long-range coupling mediated by a diffusing substance |
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| Authors: | R. L. Viana A. M. Batista C. A. S. Batista K. C. Iarosz |
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| Affiliation: | 1.Department of Physics,Federal University of Paraná,Curitiba,Brazil;2.Department of Mathematics,State University of Ponta Grossa,Ponta Grossa,Brazil;3.Center for Marine Studies,Federal University of Paraná,Pontal do Paraná,Brazil;4.Institute of Physics,University of S?o Paulo, S?o Paulo,S?o Paulo,Brazil |
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| Abstract: | We investigate analytically and numerically coupled lattices of chaotic maps where the interaction is non-local, i.e., each site is coupled to all the other sites but the interaction strength decreases exponentially with the lattice distance. This kind of coupling models an assembly of pointlike chaotic oscillators in which the coupling is mediated by a rapidly diffusing chemical substance. We consider a case of a lattice of Bernoulli maps, for which the Lyapunov spectrum can be analytically computed and also the completely synchronized state of chaotic Ulam maps, for which we derive analytically the Lyapunov spectrum. |
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